Title:
SILICON COMPOSITE ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERIES INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2014/027845
Kind Code:
A1
Abstract:
The present invention relates to a nanosilicon-based compound graphene/carbon fiber composite, to a method for preparing same, and to lithium secondary batteries including an anode active material containing the composite, wherein the composite is prepared by reacting lithium powder with silica powder so as to form a nanosilicon-based compound powder through a single displacement reaction of oxygen in which the oxygen in silica is transferred to lithium, and allowing the nanosilicon-based compound powder to include the graphene and carbon fibers.
Inventors:
NGUYEN DAN THIEN (KR)
NGUYEN CAO CUONG (KR)
SONG SEUNG WAN (KR)
NGUYEN CAO CUONG (KR)
SONG SEUNG WAN (KR)
Application Number:
PCT/KR2013/007341
Publication Date:
February 20, 2014
Filing Date:
August 14, 2013
Export Citation:
Assignee:
IAC IN NAT UNIV CHUNGNAM (KR)
International Classes:
B82B3/00; H01M4/36; H01M4/64
Foreign References:
| KR20110059130A | 2011-06-02 | |||
| KR20080076075A | 2008-08-20 | |||
| KR20110124728A | 2011-11-17 |
Other References:
LIU, Y. ET AL.: "Improvement of cycling stability of Si anode by mechanochemcial reduction and carbon coating.", JOURNAL OF POWER SOURCES., vol. 189, 2009, pages 480 - 484
YANG, XUELIN ET AL.: "Nanosized silicon-based composite derived by in situ mechanochemical reduction for lithium ion batteries.", JOURNAL OF POWER SOURCES., vol. 164, 2007, pages 880 - 884
YANG, XUELIN ET AL.: "Nanosized silicon-based composite derived by in situ mechanochemical reduction for lithium ion batteries.", JOURNAL OF POWER SOURCES., vol. 164, 2007, pages 880 - 884
Attorney, Agent or Firm:
KWON, Oh-Sig et al. (Hanbat-daeroSeo-gu, Daejeon 302-828, KR)
Download PDF: